Answer:
The answer is: Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Explanation:
 
        
                    
             
        
        
        
Answer:
C. Viruses 
Explanation:
Viruses lack the properties of living things. They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli. They also don't reproduce independently but must replicate by invading living cells.
 
        
                    
             
        
        
        
Topographic maps and satellite images
Explanation:
A topographic map represents earth's surface features like land forms and structures, rivers and lakes, mountains and hills, elevations and other natural features along with man-made artificial features like cities, buildings, monuments, roads, bridges etc. These are formed by contour lines.
Topographic maps are printed with revision dates to observe the changes happening on the Earth's surface. Various land forms keeps changing due to natural and man-made causes and these needs to be updated accordingly to provide accurate details. 
A satellite image provides details of the earth aerially from space. These provides details of a land form or any earth structure currently. 
By comparing with older satellite images or topographic maps with the current one, the changes which occurred over time can be observed.
 
        
             
        
        
        
Fluorescent in situ hybridization (Fish) is a method employing a fluorescent dye covalently bonded to a specific nucleic acid probe identifying or tracking organisms in the environment. Fluorescent in situ hybridization (fish) can be used to determine; how many salmonella typhimurium cells are present in a sample of unpasteurized apple juice, the phylogenetic diversity of an environmental sample and also whether a specific piece of mRNA is being produced.